Nonlinear Magneto-Optical Microscopy

V. Kirilyuk; A. Kirilyuk; Th. Rasing

doi:10.3379/jmsjmag.23.715

Journal of the Magnetics Society of Japan

Online ISSN : 1880-4004
Print ISSN : 0285-0192
ISSN-L : 0285-0192

Chapter 10. Novel Scientific Instrumentation & Processing

Nonlinear Magneto-Optical Microscopy

V. Kirilyuk, A. Kirilyuk, Th. Rasing

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Keywords: magneto-optical imaging, optical second harmonic generation, magnetic domains, ultra thin films

JOURNAL OPEN ACCESS

1999 Volume 23 Issue 1_2 Pages 715-717

DOI https://doi.org/10.3379/jmsjmag.23.715

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Abstract

We report the development of a new magnetic imaging technique: nonlinear magneto-optical microscopy. Magnetization induced second harmonic generation (MSHG) is used to image the domain structure in ultrathin CoNi/Pt films. Due to both very high magneto-optical contrast and enhanced interface sensitivity, fine details of magne-tization reversal on CoNi/Pt interfaces become visible with the MSHG imaging that are not detectable by usual magneto-optics. The problem of separating the images from different multilayer interfaces is discussed.

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